Calculator: calculate the annual simple flat interest rate to negociate in order to earn a certain simple flat rate interest on the principal (money starting amount) by duration and additional transaction fees

Calculator: annual simple interest rate to negociate to earn a certain interest

Annual simple flat interest rate = (Simple flat rate interest × Number of days in a year) ÷ (Principal × Duration in days)

Latest calculated annual simple flat interest rates

Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 10,500 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 9 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Feb 03, 2017, to date: Feb 03, 2022, namely for a period of 1,826 days (60 Months) if the commission fee (withdrawal or payment) is 0%.Aug 15 09:35 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 10,500 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 15 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Feb 03, 2017, to date: Feb 03, 2022, namely for a period of 1,826 days (60 Months) if the commission fee (withdrawal or payment) is 0%.Aug 15 08:56 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 25,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 8,940.625 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Jun 04, 2018, to date: Jul 04, 2022, namely for a period of 1,491 days (49 Months) if the commission fee (withdrawal or payment) is 0%.Aug 15 08:43 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 2,000,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 8.5 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Nov 19, 2017, to date: Apr 19, 2026, namely for a period of 3,073 days (101 Months) if the commission fee (withdrawal or payment) is 0%.Aug 15 08:16 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 4,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 120 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Mar 25, 2017, to date: Dec 25, 2017, namely for a period of 275 days (9 Months) if the commission fee (withdrawal or payment) is 0%.Aug 15 07:45 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 60,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 5 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: May 01, 2017, to date: Jan 30, 2021, namely for a period of 1,370 days (44 Months and 29 Days) if the commission fee (withdrawal or payment) is 0%.Aug 15 05:03 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 4,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 6 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Oct 03, 2017, to date: Nov 03, 2017, namely for a period of 31 days if the commission fee (withdrawal or payment) is 0%.Aug 15 03:01 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 400 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 28 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Aug 28, 2017, to date: Sep 28, 2017, namely for a period of 31 days if the commission fee (withdrawal or payment) is 0%.Aug 15 02:55 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 4,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 6 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Oct 03, 2017, to date: Nov 03, 2017, namely for a period of 31 days if the commission fee (withdrawal or payment) is 0%.Aug 15 02:03 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 25,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 8,940.625 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Jun 04, 2018, to date: Jul 04, 2022, namely for a period of 1,491 days (49 Months) if the commission fee (withdrawal or payment) is 0%.Aug 15 01:39 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 35,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 3 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Dec 20, 2017, to date: Dec 20, 2019, namely for a period of 730 days (24 Months) if the commission fee (withdrawal or payment) is 0%.Aug 15 01:23 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 800 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 0 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Mar 27, 2018, to date: Apr 08, 2018, namely for a period of 12 days if the commission fee (withdrawal or payment) is 2%.Aug 15 00:31 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 2,000,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 8.5 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Nov 19, 2017, to date: Apr 19, 2026, namely for a period of 3,073 days (101 Months) if the commission fee (withdrawal or payment) is 0%.Aug 15 00:16 UTC (GMT)
All annual simple flat interest rates calculated by users


How to calculate / negociate the simple flat interest rate of a principal - initial starting amount of money lent, deposited or borrowed, in order to collect or pay a certain simple flat rate interest by the duration and any additional transaction fees (withdrawal, payment in advance, etc.).

Annual simple flat rate interest formula:

  • I = S × p% × n

  • I = n years simple interest charged
  • S = initial amount (principal)
  • p% = annual simple flat interest rate (percentage of the principal, charged as interest)
  • n = number of years of the lending or borrowing the money
  • Formula of the simple flat interest rate applied on the principal - initial starting amount of money lent, deposited or borrowed, in order to earn a simple flat annual rate:

  • p% = I ÷ (S × n)

Examples of how to calculate the simple flat interest rate on the principal amount in order to earn a certain simple flat rate interest:

  • 1) What is the simple flat interest rate of the principal S = 20,000 units that has to be lent, deposited or borrowed, for a period of n = 5 years, if the simple flat rate interest collected or paid D = 3,500 units?
    Answer:
    p% = I ÷ (S × n) = 3,500 ÷ (20,000 × 5) = 3,500 ÷ 100,000 = 3.5 ÷ 100 = 3.5%
  • 2) What is the simple flat interest rate of a principal S = 5,000 units, that has to be lent, deposited or borrowed, for a period of n = 3 years, if the simple flat rate interest collected or paid D = 300 units?
    Answer:
    p% = I ÷ (S × n) = 300 ÷ (5,000 × 3) = 300 ÷ 15,000 = 3 ÷ 150 = 1 ÷ 50 = 2 ÷ 100 = 2%

Annual simple flat interest rate formula calculated for a period of n years:

  • Simple flat interest rate, p% = I ÷ (S × n)
  • Interest, I = S × p% × n
  • Principal, S = I ÷ (p% × n)
  • Number of years of the period of the deposit, lending or borrowing, n = I ÷ (S × p%)

Formula of the simple flat interest rate of the principal for an annual simple flat rate interest calculated for a period of m months:

  • Simple flat interest rate, p% = (12 × I) ÷ (S × m)
  • Interest, I = (S × p% × m) ÷ 12
  • Principal, S = (12 × I) ÷ (p% × m)
  • Number of months of the period, m = (12 × I) ÷ (S × p%)

Formula of the simple flat interest rate of a principal for an annual simple flat rate interest calculated for a period of d days:

  • Simple flat interest rate, p% = (365 × I) ÷ (S × d)
  • Interest, I = (S × p% × d) ÷ 365
  • Principal, S = (365 × I) ÷ (p% × d)
  • Number of days of the period, d = (365 × I) ÷ (S × p%)

More examples of how the simple flat interest rate of a principal for a simple flat rate interest formula works:

  • 1) Calculate the simple flat interest rate of the initial amount S = 400 units that would generate a simple flat rate interest I = 6.67 units in m = 5 months.
    Answer:
    p% = (12 × I) ÷ (S × m) = (12 × 6.67) ÷ (400 × 5) = (12 × 6.67) ÷ 2,000 = 80 ÷ 2,000 = 4%
  • 2) Calculate the simple flat interest rate of the initial amount S = 400 units that would generate a simple flat rate interest I = 7.5 units in m = 5 months.
    Answer:
    p% = (12 × I) ÷ (S × m) = (12 × 7.5) ÷ (400 × 5) = 90 ÷ 2,000 = 4.5%.